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System.cpp
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System.cpp
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#include "nil.h"
#include "nilUtil.h"
#include <initguid.h>
#include <devguid.h>
#include <devpkey.h>
#include <wbemidl.h>
#include <oleauto.h>
#include <setupapi.h>
extern "C" {
# include <hidsdi.h>
};
#pragma comment( lib, "hid.lib" )
#pragma comment( lib, "setupapi.lib" )
namespace nil {
System::System( HINSTANCE instance, HWND window ): mWindow( window ),
mInstance( instance ), mDirectInput( nullptr ), mMonitor( nullptr ),
mIDPool( 0 ), mInitializing( true )
{
// Make sure the window is a window
if ( !IsWindow( mWindow ) )
NIL_EXCEPT( L"Window handle is invalid" );
// Get the HID device interface GUID
// HidD_GetHidGuid( &g_HIDInterfaceGUID );
// Create DirectInput instance
auto hr = DirectInput8Create( mInstance, DIRECTINPUT_VERSION,
IID_IDirectInput8W, (LPVOID*)&mDirectInput, NULL );
if ( FAILED( hr ) )
NIL_EXCEPT_DINPUT( hr, L"Could not instance DirectInput 8" );
// Initialize our Plug-n-Play monitor
mMonitor = new PnPMonitor( mInstance, this );
initializeDevices();
refreshDevices();
mInitializing = false;
wprintf_s( L"Initial devices:\r\n" );
for ( Device* device : mDevices )
if ( device->getStatus() == Device::Status_Connected )
{
wprintf_s( L"Initial: (%d) %s (%s %s)\r\n",
device->getID(),
device->getName().c_str(),
device->getHandler() == Device::Handler_XInput ? L"XInput" : L"DirectInput",
device->getType() == Device::Device_Mouse ? L"Mouse" : device->getType() == Device::Device_Keyboard ? L"Keyboard" : L"Controller"
);
device->create();
if ( device->getHandler() == Device::Handler_DirectInput )
{
DirectInputDevice* diDevice = dynamic_cast<DirectInputDevice*>( device );
wprintf_s( L" product: %s\r\n instance: %s\r\n",
guidToStr( diDevice->getProductID() ).c_str(),
guidToStr( diDevice->getInstanceID() ).c_str()
);
}
}
wprintf_s( L"Running...\r\n" );
}
DeviceID System::getNextID()
{
return mIDPool++;
}
void System::onPlug( const GUID& deviceClass, const String& devicePath )
{
// Refresh all currently connected devices,
// since IDirectInput8::FindDevice doesn't do jack shit
refreshDevices();
}
void System::onUnplug( const GUID& deviceClass, const String& devicePath )
{
// Refresh all currently connected devices,
// since IDirectInput8::FindDevice doesn't do jack shit
refreshDevices();
}
void System::initializeDevices()
{
mXInputIDs.resize( XUSER_MAX_COUNT );
for ( int i = 0; i < XUSER_MAX_COUNT; i++ )
{
mXInputIDs[i] = getNextID();
auto device = new XInputDevice( this, mXInputIDs[i], i );
mDevices.push_back( device );
}
}
void System::refreshDevices()
{
identifyXInputDevices();
for ( Device* device : mDevices )
if ( device->getHandler() == Device::Handler_DirectInput )
{
device->saveStatus();
device->setStatus( Device::Status_Pending );
}
auto hr = mDirectInput->EnumDevices( DI8DEVCLASS_ALL,
diEnumCallback, this, DIEDFL_ATTACHEDONLY );
if ( FAILED( hr ) )
NIL_EXCEPT_DINPUT( hr, L"Could not enumerate DirectInput devices!" );
for ( Device* device : mDevices )
if ( device->getHandler() == Device::Handler_DirectInput
&& device->getSavedStatus() == Device::Status_Connected
&& device->getStatus() == Device::Status_Pending )
device->onDisconnect();
XINPUT_STATE state;
for ( Device* device : mDevices )
{
if ( device->getHandler() == Device::Handler_XInput )
{
auto xDevice = dynamic_cast<XInputDevice*>( device );
auto status = XInputGetState( xDevice->getXInputID(), &state );
if ( status == ERROR_DEVICE_NOT_CONNECTED )
{
if ( xDevice->getStatus() == Device::Status_Connected )
xDevice->onDisconnect();
else if ( xDevice->getStatus() == Device::Status_Pending )
xDevice->setStatus( Device::Status_Disconnected );
}
else if ( status == ERROR_SUCCESS )
{
if ( xDevice->getStatus() == Device::Status_Disconnected )
xDevice->onConnect();
else if ( xDevice->getStatus() == Device::Status_Pending )
xDevice->setStatus( Device::Status_Connected );
}
else
NIL_EXCEPT( L"XInputGetState failed" );
}
}
}
BOOL CALLBACK System::diEnumCallback( LPCDIDEVICEINSTANCEW instance,
LPVOID referer )
{
auto system = static_cast<System*>( referer );
for ( uint32_t identifier : system->mXInputDeviceIDs )
if ( instance->guidProduct.Data1 == identifier )
return DIENUM_CONTINUE;
for ( Device* device : system->mDevices )
{
if ( device->getHandler() != Device::Handler_DirectInput )
continue;
auto diDevice = dynamic_cast<DirectInputDevice*>( device );
if ( diDevice->getInstanceID() == instance->guidInstance )
{
if ( device->getSavedStatus() == Device::Status_Disconnected )
device->onConnect();
else
device->setStatus( Device::Status_Connected );
return DIENUM_CONTINUE;
}
}
Device* device = new DirectInputDevice( system, system->getNextID(), instance );
if ( system->isInitializing() )
device->setStatus( Device::Status_Connected );
else
device->onConnect();
system->mDevices.push_back( device );
return DIENUM_CONTINUE;
}
void System::identifyXInputDevices()
{
mXInputDeviceIDs.clear();
SP_DEVICE_INTERFACE_DATA interfaceData = { sizeof( SP_DEVICE_INTERFACE_DATA ) };
auto info = SetupDiGetClassDevsW( &g_HIDInterfaceGUID,
NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE );
if ( info == INVALID_HANDLE_VALUE )
NIL_EXCEPT_WINAPI( L"SetupDiGetClassDevsW failed" );
unsigned long xinputIndex = 0;
for ( unsigned long i = 0; SetupDiEnumDeviceInterfaces(
info, 0, &g_HIDInterfaceGUID, i, &interfaceData ); i++ )
{
unsigned long length = 0;
SetupDiGetDeviceInterfaceDetailW( info, &interfaceData, NULL, 0, &length, NULL );
if ( GetLastError() != ERROR_INSUFFICIENT_BUFFER )
NIL_EXCEPT_WINAPI( L"SetupDiGetDeviceInterfaceDetailW failed" );
auto detailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA_W)malloc( length );
detailData->cbSize = sizeof( SP_INTERFACE_DEVICE_DETAIL_DATA_W );
if ( SetupDiGetDeviceInterfaceDetailW( info, &interfaceData, detailData, length, NULL, NULL ) )
{
if ( wcsstr( detailData->DevicePath, L"ig_" )
|| wcsstr( detailData->DevicePath, L"IG_" ) )
{
auto handle = CreateFileW( detailData->DevicePath, 0,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL );
if ( handle == INVALID_HANDLE_VALUE )
NIL_EXCEPT_WINAPI( L"CreateFileW failed" );
HIDD_ATTRIBUTES attributes = { sizeof( HIDD_ATTRIBUTES ) };
if ( !HidD_GetAttributes( handle, &attributes ) )
NIL_EXCEPT( L"HidD_GetAttributes failed" );
unsigned long identifier = MAKELONG(
attributes.VendorID, attributes.ProductID );
mXInputDeviceIDs.push_back( identifier );
CloseHandle( handle );
}
}
free( detailData );
}
SetupDiDestroyDeviceInfoList( info );
}
const bool System::isInitializing()
{
return mInitializing;
}
void System::update()
{
// Run PnP events if there are any
mMonitor->update();
// First make sure that we disconnect failed devices
for ( Device* device : mDevices )
if ( device->isDisconnectFlagged() )
device->onDisconnect();
else
device->update();
}
System::~System()
{
for ( Device* device : mDevices )
delete device;
SAFE_DELETE( mMonitor );
SAFE_RELEASE( mDirectInput );
}
}